Dental handpiece



FIG. 1 is a perspective view showing our new design for a dental handpiece, the portion shown in dotted lines is for illustrative purposes only and forms no part of the claimed design,

FIG. 2 is a front view thereof, the rear view being a mirror image thereof, the portion shown in dotted lines is for illustrative purposes only and forms no part of the claimed design,

FIG. 3 is a top plan view thereof,

FIG. 4 is a bottom view thereof, the portion shown in dotted lines is for illustrative purposes only and forms no part of the claimed design,

FIG. 5 is a right side view thereof, the portion shown in dotted lines is for illustrative purposes only and forms no part of the claimed design; and,

FIG. 6 is a left side view thereof, the portion shown in dotted lines is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a dental handpiece, as shown and described. 